Liberty Eiffel is a compiler for the Eiffel programming language. It continues the development of SmartEiffel, the GNU Eiffel Compiler. It is a complete, small, and fast Eiffel compiler, including an Eiffel to C compiler, documentation tools, a pretty printer, a debugger, and various other tools. It also includes a large library of classes distributed under the terms of the MIT/X Consortium License and a comprehensive set of wrappers/bindings for widespread free software libraries. Eiffel is an advanced object-oriented programming language that emphasizes the design and construction of high-quality and reusable software.

Origo is a software development and collaboration
platform. It provides services that help develop
software, such as source control management, issue
tracking, wiki, release management, chat, blog,
and forum. It uses an API to unify different tools
and provides a common way to stay informed about
changes in your projects. The API also allows you
to integrate other tools into the plaform easily.

codemetre allows you to compare different versions of your software project, determining how and how much source files have changed. It currently recognizes both source code and comments from Ada, Bash shell, C, Eiffel, SQL, and more. It can also provide you with metrics on any single snapshot of your project.

EWS is a library implementing a small windowing
system and toolkit to be embedded in multimedia
applications. It runs over SDL, and supports
real-time animations, alpha-blending, and
completely customizable presentation. It is
written in Eiffel and has an simple and extensible
object-oriented API.

Amber for Parrot is an object-oriented scripting
language for the Parrot virtual machine. It
combines the traditional advantages of scripting
languages with support for software correctness
and large-scale software engineering. Amber for
Parrot has syntax and semantics somewhere between
those of Eiffel and Ruby.

The Eclipe Eiffel Development Tools (EDT) are a
set of plugins which implement a full-fledged,
highly integrated Eiffel development environment
based on the Eclipse Platform. The EDT plugins
contribute a number of facilities specific to
Eiffel, such as an Eiffel builder, a Cluster
Explorer, and Refactorings.

G2F3 (Generic Game Framework in eiFFel) aims to
simplify the development of two player zero sum
strategy games by separating game specific code
from reusable generic code. So far, abstract board
games are best supported. This software is written
using GNU SmartEiffel. The package comes with six
example games.

Visual Paradigm for UML is a Unified Modeling Language (UML) design tool that supports all UML diagrams, SysML diagrams, and entity relationship diagrams. Visual Paradigm for UML provides extensive use case modeling features, including full function UML use case diagram, flow of events editor, use case/actor grid, and activity diagram generation. Visual Paradigm for UML produces system documentation in PDF, HTML, and MS Word formats. A developer can design system documentation with the template designer. A system analyst can estimate the consequences of changes with impact analysis diagrams, such as matrix and analysis diagram. Visual Paradigm for UML generates Java code.

eformmail is a stand-alone CGI program that accepts an
HTML form and emails it. The target email
address is not buried in the HTML form,
making it impossible for spammers to take
advantage of this email address. A comprehensive manual is available. eformmail can also validate fields for validity using regular expressions. Since release 2.0 eformmail has a spam tram, so fake form submissions can be dismissed immediately. The proposed email output can be formatted by an XSLT processor.